Button supports two instances in one app? (AEGHB-802)

[mike-2020]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

Many internal variables of "button" are defined as static global variables. So, want to confirm if I can create two button instances in my app? one is for GPIO button, one is for ADC button.

[lijunru-hub]

you can create any number of button for any types

[mike-2020]

In such case, multiple "button" instances share the same timer, right?

[lijunru-hub]

the polling of multiple buttons is handled through a single timer.